Additional items to consider:
- How many rebuys you would allow each player. -- Some tournaments allow only 1 per player while others offer up to an unlimited amount.
- Cut-off time -- This is usually the 1st break / color up in the tournament. If doing 20 minute levels, you may find that your color up level is after level 5, and thus an hour and 40 minutes into the event.
- Cost -- As mentioned, some people allow different cost options for a rebuy. It all depends on where your $$ is going for the initial buy-in and payouts (does the house get a cut for food and such? Some make the rebuy cost lower.
- Amount of chips -- Initial stacks may be 10k for example on a $40 buy-in. You may offer a $20 rebuy for 5k in chips. You could offer a $40 rebuy for 5k in chips, or you could give everyone the original starting stack (my preference).
In my game, I keep it consistent with the same buy-in amount as rebuy amount, and the same amount of chips for each. It just makes the game prep easier having stacks ready to go for rebuys. I allow 1 rebuy per person before the 1st break (2 hours).
Some games allow add-on's as well. Lets say you get 10k in chips for $40. You may allow players to add an additional 5k in chips for an additional $20. You could have this at the beginning of the game, or offer it as an option at the 1st break as well. Those players with healthy stacks may not want/need to add-on, while those players with shorter stacks may want to top off a bit. Add-ons are usually added into the prize pool as well (unless you specifically state otherwise -- like a $10 optional add-on for $5k in chips which goes to the house for food and beverages).
Some hosts may purchase "Rebuy" chips and hand them out to each player at the start of the game. If the player loses all of their chips, they can turn in the rebuy chip and rebuy. This way, you can easily track who has, and has not rebought in the event. Also, some hosts will let those with rebuy chips available add-on for an additional amount as well (see above).
Some hosts keep the starting stacks small and the buy-ins small to induce lots of action and lots of rebuys. For example, you start with 2500 in chips with the blinds at 25/50 and the buyin is $10. You have short stacks compare to the blinds, and you get lots of all-in and bust outs, but the rebuys are "cheap" and unlimited, so you build big stacks with short buy-ins. Someone will get lucky to buy-in 1 or 2 times, while some may rebuy 10+ times.
Other hosts (like myself) like deeper stacks with a mid level buy-in. We start with 10k in chips at the same 25/50 blind level. Coolers happen, and its nice to be able to buy back in if that happens. Some people like the double up early or rebuy approach as well. Some players (like
@Highli99 ) really want the cash game to get started and may just punt.
Lots of options with the rebuys, as you can tell. Feel free to ask any other questions you may have.
Mark